Answer: a. The only US-based auto plant whose pristine grounds have been designated a wildlife habitat .
Explanation:
The Subaru of Indiana Automotive assembly plant is a Japanese company based in Indiana, USA. The assembly plant is environmentally sustainable, by reducing the waste produced to 0% because 100% of its product is used or recycled.
Also, in 2003, the assembly plant was declared a wildlife refuge, by decoupling 300 acres of forest for wildlife conservation, unique to an industrial production plant.
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